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Finding the Fourth Proportional to 631,680.04, 871,698.18 and 345,199.24

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Solution

The fourth proportional to 631,680.04, 871,698.18 and 345,199.24 is: 476,363.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,680.04 : 871,698.18 = 345,199.24 : x
  2. Step 2: Convert to fraction form
    631,680.04/871,698.18 = 345,199.24/x
  3. Step 3: Cross multiply
    631,680.04x = 871,698.18 × 345,199.24
  4. Step 4: Simplify right side
    631,680.04x = 300,909,549,245.38
  5. Step 5: Solve for x
    x = 300,909,549,245.38/631,680.04
  6. Step 6: Final answer
    x = 476,363.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.